UFC Fight Night 4: Predictions & Analysis
UFC Fight Night 4 lands on Thursday, April 6, 2006 in Las Vegas, Nevada, USA with 9 bouts on the card. Below is our fight-by-fight breakdown, combining Elo ratings, rolling statistical trends, style matchup data, and betting market context into a pick for every bout.
Quick Picks
| Matchup | Pick | Confidence | Prob |
|---|---|---|---|
| Stephan Bonnar vs Keith JardineLight Heavyweight | Keith Jardine | Toss-up | 51% |
| Rashad Evans vs Sam HogerLight Heavyweight | Rashad Evans | Toss-up | 51% |
| Josh Neer vs Joe StevensonWelterweight | Joe Stevenson | Toss-up | 51% |
| Chris Leben vs Luigi FioravantiMiddleweight | Chris Leben | Confident | 67% |
| Luke Cummo vs Jason Von FlueWelterweight | Jason Von Flue | Lean | 57% |
| Jon Fitch vs Joshua BurkmanWelterweight | Joshua Burkman | Lean | 57% |
| Dan Christison vs Brad ImesHeavyweight | Brad Imes | Toss-up | 52% |
| Josh Koscheck vs Ansar ChalangovWelterweight | Josh Koscheck | Strong | 81% |
| Chael Sonnen vs Trevor PrangleyMiddleweight | Trevor Prangley | Toss-up | 53% |
Fight-by-Fight Breakdown
Stephan Bonnar vs Keith Jardine
The Light Heavyweight matchup features Stephan Bonnar (8-6) taking on Keith Jardine (6-6). Bonnar is the bigger frame at 6'4" with a 3-inch reach advantage.
Bonnar is rated at 1278 — 328 points above Jardine's 950. Gaps this large usually mean one fighter has been consistently beating better opponents. Bonnar rides a 3-fight win streak into this one.
Stylistically this is Bonnar's wrestler game against Jardine's striker approach. Bonnar looks to close distance and put the fight on the mat, while Jardine brings a versatile approach. Historically these archetypes are dead-even when they collide.
A few statistical edges stand out. Jardine throws significantly more leather — a 0.7 sig. strike per minute gap. Bonnar is far more active with takedowns, averaging 2.2 more per 15 minutes. Jardine has tighter striking defense, making opponents miss more often.
The Pick: Keith Jardine over Stephan Bonnar. This is essentially a pick'em. The model nudges toward Jardine at 51%, but there's almost nothing separating these two.
Rashad Evans vs Sam Hoger
The Light Heavyweight matchup features Rashad Evans (14-7-1) taking on Sam Hoger (2-2).
Evans is rated at 1121 — 196 points above Hoger's 925. Gaps this large usually mean one fighter has been consistently beating better opponents.
A few statistical edges stand out. Evans throws significantly more leather — a 2.0 sig. strike per minute gap. Hoger is far more active with takedowns, averaging 1.6 more per 15 minutes. Evans has tighter striking defense, making opponents miss more often.
The Pick: Rashad Evans over Sam Hoger. This is essentially a pick'em. The model nudges toward Evans at 51%, but there's almost nothing separating these two.
Josh Neer vs Joe Stevenson
The Welterweight matchup features Josh Neer (6-8) taking on Joe Stevenson (8-7). Neer is the bigger frame at 5'11" with a 2-inch reach advantage.
Stevenson carries a modest Elo edge (907 to 872), the kind of gap that reflects a slightly better run of form rather than a talent chasm.
Both fighters land in our "Wrestler" archetype — fighters who win by dictating where the fight takes place, grinding out control time and wearing opponents down. When mirror matchups like this happen, the edge usually goes to whoever can impose their preferred pace and range.
A few statistical edges stand out. Stevenson throws significantly more leather — a 0.8 sig. strike per minute gap. Stevenson is far more active with takedowns, averaging 2.5 more per 15 minutes. Neer has tighter striking defense, making opponents miss more often.
The Pick: Joe Stevenson over Josh Neer. This is essentially a pick'em. The model nudges toward Stevenson at 51%, but there's almost nothing separating these two.
Chris Leben vs Luigi Fioravanti
The Middleweight matchup features Chris Leben (12-9) taking on Luigi Fioravanti (4-4). Leben is the bigger frame at 5'11" with a 3-inch reach advantage.
There's a real Elo separation here: Fioravanti at 987 versus Leben at 855. That 132-point gap typically reflects a meaningful difference in recent quality of competition and results.
The style clash matters here: Leben is comfortable adjusting on the fly, mixing strikes and grappling as openings appear, while Fioravanti looks to close distance and put the fight on the mat. In our database, wrestlers own a 59% win rate against all-rounders, giving Fioravanti the stylistic edge.
A few statistical edges stand out. Leben throws significantly more leather — a 3.1 sig. strike per minute gap. Leben is far more active with takedowns, averaging 2.1 more per 15 minutes. Fioravanti has tighter striking defense, making opponents miss more often.
The Pick: Chris Leben over Luigi Fioravanti. We're leaning Leben here at 67%, a solid but not overwhelming edge.
Luke Cummo vs Jason Von Flue
The Welterweight matchup features Luke Cummo (3-3) taking on Jason Von Flue (1-1).
The Elo gap here is razor-thin — Cummo at 896, Flue at 897. On paper, this is as close to a coin flip as it gets.
A few statistical edges stand out. Flue throws significantly more leather — a 1.1 sig. strike per minute gap. Cummo is far more active with takedowns, averaging 1.0 more per 15 minutes. Flue has tighter striking defense, making opponents miss more often.
The Pick: Jason Von Flue over Luke Cummo. The model gives Flue a slight nod at 57% — this could easily go either way.
Jon Fitch vs Joshua Burkman
The Welterweight matchup features Jon Fitch (14-2-1) taking on Joshua Burkman (6-11). Fitch is the bigger frame at 6'0" with a 2-inch reach advantage.
Fitch is rated at 1398 — 655 points above Burkman's 743. Gaps this large usually mean one fighter has been consistently beating better opponents.
Both fighters land in our "Wrestler" archetype — fighters who win by dictating where the fight takes place, grinding out control time and wearing opponents down. When mirror matchups like this happen, the edge usually goes to whoever can impose their preferred pace and range.
A few statistical edges stand out. Burkman throws significantly more leather — a 5.8 sig. strike per minute gap. Burkman is far more active with takedowns, averaging 5.2 more per 15 minutes. Burkman has tighter striking defense, making opponents miss more often.
The Pick: Joshua Burkman over Jon Fitch. The model gives Burkman a slight nod at 57% — this could easily go either way.
Dan Christison vs Brad Imes
The Heavyweight matchup features Dan Christison (1-0) taking on Brad Imes (0-2).
Christison is rated at 1025 — 241 points above Imes's 785. Gaps this large usually mean one fighter has been consistently beating better opponents.
A few statistical edges stand out. Imes throws significantly more leather — a 2.8 sig. strike per minute gap. Imes is far more active with takedowns, averaging 2.0 more per 15 minutes. Christison has tighter striking defense, making opponents miss more often.
The Pick: Brad Imes over Dan Christison. This is essentially a pick'em. The model nudges toward Imes at 52%, but there's almost nothing separating these two.
Josh Koscheck vs Ansar Chalangov
The Welterweight matchup features Josh Koscheck (15-9) taking on Ansar Chalangov (0-1).
Koscheck is rated at 939 — 150 points above Chalangov's 789. Gaps this large usually mean one fighter has been consistently beating better opponents.
A few statistical edges stand out. Koscheck throws significantly more leather — a 0.2 sig. strike per minute gap. Koscheck is far more active with takedowns, averaging 6.5 more per 15 minutes. Koscheck has tighter striking defense, making opponents miss more often.
The Pick: Josh Koscheck over Ansar Chalangov. The model is firm on this one: Koscheck at 81%.
Chael Sonnen vs Trevor Prangley
The Middleweight matchup features Chael Sonnen (7-6) taking on Trevor Prangley (2-1).
Sonnen is rated at 1430 — 499 points above Prangley's 932. Gaps this large usually mean one fighter has been consistently beating better opponents.
A few statistical edges stand out. Prangley throws significantly more leather — a 1.0 sig. strike per minute gap. Prangley is far more active with takedowns, averaging 5.8 more per 15 minutes. Prangley has tighter striking defense, making opponents miss more often.
The Pick: Trevor Prangley over Chael Sonnen. This is essentially a pick'em. The model nudges toward Prangley at 53%, but there's almost nothing separating these two.
Methodology
Predictions are generated by our ensemble model combining LightGBM (65%) and CatBoost (35%), trained on every UFC fight since 1994. The model uses 23 features including Elo ratings, rolling 5-fight statistical averages, style matchup history, physical attributes, and market odds when available.
On our held-out test set (402 fights from January-September 2023), the model achieves 63.4% accuracy with a log-loss of 0.626. High-confidence picks (>75% probability) hit at 82.7%. For full model transparency, visit our Model page.